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Jakarta Airports Reopen After Mount Anak Krakatau Ash Grounds 340,000 Passengers

A weekend eruption 150 kilometres from the capital triggered one of Indonesia's largest aviation disruptions in recent memory, closing eight airports across Java and Sumatra.

Qontaktly Editorial·September 8, 2026·3 min read
Key takeaways
  • Mount Anak Krakatau erupted on Saturday, triggering ash-related closures at eight Indonesian airports across Java and Sumatra.
  • More than 340,000 passengers were stranded and close to 3,000 flights were disrupted over the weekend.
  • Soekarno-Hatta International Airport and four other hubs resumed operations early Tuesday; two airports remained closed as of that announcement.
  • Airlines faced a significant backlog, with over 240 flights still cancelled or delayed at Soekarno-Hatta on Monday morning alone.
  • Anak Krakatau has a history of dangerous activity, including a 2018 tsunami that killed 429 people.

Jakarta and Java Airports Resume Flights After Volcanic Ash Closure

Soekarno-Hatta International Airport and four other aviation hubs across Java resumed operations early Tuesday after a multiday shutdown caused by volcanic ash from Mount Anak Krakatau, which erupted on Saturday roughly 150 kilometres southwest of Jakarta. The reopenings brought partial relief to an air network that had been paralysed since the weekend, though airlines still faced the considerable challenge of clearing a backlog of stranded passengers.

What the Eruption Triggered

Mount Anak Krakatau, which sits in the strait separating Java and Sumatra, sent a plume of ash across a wide arc of airspace on Saturday. Indonesia's Transport Ministry, as first reported by Agence France-Presse, confirmed that eight airports suspended operations after ash was detected in their airspace. The disruption affected close to 3,000 flights and left more than 340,000 passengers unable to travel. Closures were extended multiple times before the first airports began reopening.

By Monday morning, more than 240 domestic and international flights at Soekarno-Hatta alone were still cancelled or delayed, with nearly 30,000 passengers affected at that single hub.

Which Airports Reopened

The Transport Ministry confirmed five airports as operational again by early Tuesday. Alongside Soekarno-Hatta, the list included Halim Perdanakusuma, a smaller Jakarta-area facility serving both civil and military traffic, and Hussein Sastranegara in Bandung, the West Java provincial capital. A small airport in south Sumatra had already resumed operations on Monday morning. As of the ministry's Tuesday announcement, two of the original eight closures remained in effect.

During the peak of the crisis, the ministry had designated six alternative airports as contingency landing options for aircraft originally bound for Jakarta.

The Volcano in Context

Anak Krakatau, whose name translates as "Child of Krakatau," emerged from the sea in the early twentieth century within the caldera left by the catastrophic 1883 Krakatau eruption. The volcano has been sporadically active since its formation. In 2018, a partial collapse of its flank triggered a tsunami that killed 429 people and displaced thousands, making it one of the deadliest volcanic events in Indonesia's recent history. The current eruption involved a lava fountain and a significant ash column but, as of reporting, had not produced a comparable coastal hazard.

Why It Matters for Hosts

Independent accommodation operators in Jakarta, Bandung, and other Java destinations should treat this event as a prompt to build a clear volcanic disruption protocol. That means keeping a current list of guests' flight details so you can proactively communicate when closures affect arrivals or departures, establishing a flexible rebooking or holding policy for force-majeure situations, and identifying nearby alternative transport options such as rail or road connections that guests can use if air travel is suspended. Communicating calmly and quickly during a disruption builds the kind of trust that generates repeat bookings and strong reviews, even when the circumstances are outside anyone's control. The Transport Ministry's use of Instagram for real-time airport status updates is also worth noting: following official government and airport accounts gives hosts an early-warning advantage over guests who may be relying on airline apps alone.

Details of the airport closures and reopenings were first reported by Agence France-Presse.

First reported by ndtv.com.

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